Profile: Carl Roth GmbH + Co. KG provides products for the research and production in modern life science. We specialize in the field of molecular biology, microbiology, electrophoresis, dialysis and biochemistry. We offer agar, which is found ideal for immunodiffusion and electrophoresis & acts as a medium for tissue, cell cultures, bacteriology & mycology. It is essentially free of impurities that could interfere with other products in culture media formulation. It is free of bacterial inhibitors. It is recommended in media to be used for the determination of susceptibility of microorganisms to antibiotics or drugs. Our product gelrite® is a highly-purified, natural heteropolysaccharide which forms stable, agar-like gels when exposed to soluble salts. It has been specially developed as a gelling agent for microbiological culture media.